Very nice work. It is always interesting to see what one can make from things lying around the shop.
Andre found some cylinders at a flower shop that was closing that look pretty good for a modern tank…
There’s 274 rivets on that tank car so far. I just counted them. Who’s a rivet counter?? 
Andre, that’s neat. What did the shop use those for? What are they called? I may check around here. What diameter is the tube?